22121101120122 has 16 divisors (see below), whose sum is σ = 49158002489280. Its totient is φ = 7373700373356.

The previous prime is 22121101120087. The next prime is 22121101120123. The reversal of 22121101120122 is 22102110112122.

22121101120122 is a `hidden beast` number, since 221 + 211 + 0 + 11 + 201 + 22 = 666.

It is a super-2 number, since 2×22121101120122² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22121101120095 and 22121101120104.

It is not an unprimeable number, because it can be changed into a prime (22121101120123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204825010318 + ... + 204825010425.

It is an arithmetic number, because the mean of its divisors is an integer number (3072375155580).

Almost surely, 2^{22121101120122} is an apocalyptic number.

22121101120122 is an abundant number, since it is smaller than the sum of its proper divisors (27036901369158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22121101120122 is a wasteful number, since it uses less digits than its factorization.

22121101120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409650020754 (or 409650020748 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22121101120122 its reverse (22102110112122), we get a palindrome (44223211232244).

The spelling of 22121101120122 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred one million, one hundred twenty thousand, one hundred twenty-two".